// We need to call this while the renderers on the model is having its material assigned to it
public Material FixMaterialForMeshRenderer(string objName, Renderer renderer)
{
string xmlPath = ImportUtils.GetXmlPathFromName(objName);
XDocument xml = XDocument.Load(xmlPath);
// The mesh to match
string meshName = renderer.name;
// The mesh name may be decorated by Unity
string pattern = @"_MeshPart[\d]$";
Regex regex = new Regex(pattern);
meshName = regex.Replace(meshName, "");
var assignMaterials = xml.Root.Elements("AssignMaterial");
// Find an assignment that matches the mesh renderer
XElement match = assignMaterials.FirstOrDefault(el => el.Attribute("mesh").Value == meshName);
if (match == null)
{
// The names of our meshes in the AssignMaterials elements may be wrong
// This happened before when Unity replaced whitespace with underscore in our named meshes
// That case is handled now, but there may be others
StringBuilder builder = new StringBuilder();
builder.AppendFormat("Could not find mesh named '{0}' for material matching\n", renderer.name);
string choices = String.Join("\n ", assignMaterials.Select(m => m.Attribute("mesh").Value).ToArray());
builder.AppendFormat("Choices are:\n {0}", choices);
Debug.LogError(builder.ToString());
return(null);
}
string materialName = match.Attribute("material").Value + ".mat";
string materialPath = ImportUtils.GetMaterialPath(materialName);
// Assign the material
Material material = AssetDatabase.LoadAssetAtPath(materialPath, typeof(Material)) as Material;
if (material == null)
{
Debug.LogError(String.Format("Could not find material: {0}", materialName));
}
renderer.sharedMaterial = material;
// Set the sorting layer for the mesh
string sortingLayer = match.Attribute("sortingLayerName").Value;
if (!String.IsNullOrEmpty(sortingLayer) && !SortingLayerExposedEditor.GetSortingLayerNames().Contains(sortingLayer))
{
Debug.LogError(string.Format("Sorting Layer \"{0}\" does not exist. Check your Project Settings -> Tags and Layers", sortingLayer));
renderer.sortingLayerName = "Default";
}
else
{
renderer.sortingLayerName = sortingLayer;
}
// Set the sorting order
renderer.sortingOrder = ImportUtils.GetAttributeAsInt(match, "sortingOrder");
// Do we have an alpha color key?
string htmlColor = ImportUtils.GetAttributeAsString(match, "alphaColorKey", "");
if (!String.IsNullOrEmpty(htmlColor))
{
// Take for granted color is in the form '#RRGGBB'
byte r = byte.Parse(htmlColor.Substring(1, 2), System.Globalization.NumberStyles.HexNumber);
byte g = byte.Parse(htmlColor.Substring(3, 2), System.Globalization.NumberStyles.HexNumber);
byte b = byte.Parse(htmlColor.Substring(5, 2), System.Globalization.NumberStyles.HexNumber);
Color color = new Color32(r, g, b, 255);
renderer.sharedMaterial.SetColor("_AlphaColorKey", color);
}
return(renderer.sharedMaterial);
}
